With more than 4.500 plants built worldwide since 1979, RICH GAS is a highly respected manufacturer of on-site gas plants for nitrogen generation and oxygen generation.RICH GAS manufactures cost-effective, safe and reliable on-site generation systems for high quality industrial gases (i.e., oxygen plants and nitrogen plants). Our plants can be used in a wide range of industries, such as petrochemical/natural gas, coal, rubber/tires, food and beverage, glass, healthcare, metal (heat treatment, smelting), electronics, paper and so on.